Bauhaus Universit Weimar EDAC by liaoqinmei

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									NHMSE                                                           Bauhaus-Universität
Master Course:
Natural Hazards Mitigation in Structural Engineering            Weimar

Project: Evaluation of Structures under Seismic Loading



Description




Fig. 1 Example of a historical earthquake map    Fig. 2 Example of a geological map




Fig. 3 2D RC frame                               Fig. 4 Time history

The main objective of the project is to utilize current tools for earthquake risk mitigation. In
order to reach this goal a thorough microzonation of the urban area in the forefront of a
damaging seismic event has to be conducted including the identification of the local
building stock’s vulnerability and social preparedness.


In this context, the analytical investigation of buildings or derived structural systems being
representative for the local building stock becomes an essential part of the study.

The main purpose of this project will be to apply as much of the theoretical background
taught during the lessons of WS 2008/09 and SS 2009. Besides, assistance to the project
progress and outcomes will be discussed in biweekly consultations.

The project will be related to the home country of the participants, so far data are
available. Otherwise the investigation area will be defined by EDAC.
Tasks to be performed in this project are:
1 General - Data Collection
   -     Allocation of typical building types and their distribution
   -     Importance of each construction method and their distribution over the
         investigation area
   -     Relation to the investigation structure of this project
   -     Standard procedures and specification for risk assessment
                  e.g. http://www.world-housing.net/
Input                  http://earthquake.usgs.gov/research/hazmaps/index.php
                       http://www.fema.gov/plan/prevent/hazus/hz_faqs.shtm

2 GIS - mapping of natural hazards and risk relevant data layer
   -     training in GIS tools (MapInfo®)
   -     maps of historical earthquakes (Magnitude, Intensity, …)
   -     maps of shaking parameters (e.g. peak ground acceleration)
   -     geological and topographic maps
   -     derivation of appropriate design spectra for different building sites
Input:            political, historical, geological, topographical maps
Milestones
and               generation of maps by GIS software – case study
Deliverables:

3 Modelling of RC frame systems
   -     creating of a numerical model
   -     identification of dynamic response characteristics
   -     comparison of derived time histories with results from testing’s
   -     calibration of the numerical model
   -     derivation of structural capacity and failure mechanism
                  complete structural layout including floor plans and cross-sections, time
Input:
                  histories, results from the laboratory tests
Milestones        design and analysis of the structural system using the software Perform3D
and               analysis of 2D models to identify dynamic structural parameters and
Deliverables:     critical – zones

4 Combination of RC structure and local conditions
   -     Damage prognosis on the investigated frame structure for different locations on the
         basis of the site dependent seismic action
                  representative areas (Task 1)
Input:            site-dependent seismic action (Task 2)
                  structural capacity (Task 3)
Milestones
and               presentation of results and preparation of a paper
Deliverables:

Time schedule

Lectures and training in GIS-Tools will be given on every week on Monday from 15:15 to
18:30 o’clock and in using Perform3D on Thursday from 15:15 to 18:30 o’clock
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